Rolamentos Lineares SKF

Linear bearings
and units
with SKF factory pre-lubrication

2
Content
The SKF brand now stands for more
than ever before, and means more to
you as a valued customer.
While SKF maintains its leadership
as the hallmark of quality bearings
throughout the world, new dimensions
in technical advances, product support
and services have evolved SKF into
a truly solutions-oriented supplier,
creating greater value for customers.
These solutions encompass ways to
bring greater productivity to customers,
not only with breakthrough application-
specific products, but also through
leading-edge design simulation tools
and consultancy services, plant asset
efficiency maintenance programmes,
and the industry’s most advanced
supply management techniques.
The SKF brand still stands for the very
best in rolling bearings, but it now
stands for much more.
SKF – the knowledge engineering
company
3 The SKF factory pre-lubrication standard
4 Product overview
8 Linear ball bearings, ISO series 1
9 LBBR
10 Linear plain bearings, ISO series 1
11 LPBR
12 Linear bearing units, ISO series 1
14 LUHR / LUJR
15 LTBR
16 LTDR
17 LQBR
18 Linear ball bearings, ISO series 3
20 LBCR
21 LBCD
22 LBCT
23 LBHT
24 LBCF
27 Linear plain bearings, ISO series 3
28 LPAR / LPAT
29 Linear bearing units, ISO series 3
31 LUCR / LUCD
32 LUCS / LUCE
33 LUCT / LUCF
34 LUCT … BH
35 LUND
36 LUNE
37 LUNF
38 LVCR
39 LTCD
40 LTCF
41 LQCR / LQCD
42 LQCF
43 Shaft carriers / shaft blocks
44 LSCS
45 LSNS / LSHS
46 LEAS / LEBS
47 LRCB / LRCC
48 Quadro linear tables, non-driven
49 LZBU
51 LZAU
52 Precision shafts

3
The SKF factory pre-lubrication standard
SKF now offers pre-lubricated linear
bearings as a standard greased at
the factory. The pre-lubricated be-
arings will save assembly time by
eliminating the need to grease the
bearings. Due to factory calibrated
grease fill, the reliability of the be-
aring will be improved. Using pre-lu-
bricated bearings will reduce main-
tenance costs as well.
SKF linear ball bearings and units
for shaft diameter 6 mm and greater
are factory pre-lubricated1)
by de-
fault2)
. Due to the integrated grease
reservoir and the use of SKF double-
lip seals (2LS), most applications will
not require relubrication because the
theoretical relubrication interval ex-
ceeds the bearing life.
The linear bearings are lubricated
with the high-performance SKF
grease LGEP2.
Our technical support as well as
the technical handbook for linear
bearings and units (order number
6402 EN or download at www.linear-
motion.skf.com) are available for
further questions on the factory
pre-lubrication.
Sealing
The double-lip seal ensures main-
tenance-free life for pre-lubricated
bearings that operate under stan-
dard conditions. The integral seal has
been designed specifically for linear
bearings. The seal lips maintain full
contact with the shaft while offering
a superior sealing solution even
when used with the shaft for the
self-aligning linear bearings of the
LBC series. The seals have also been
optimized for low friction operation.
Lubricant
LGEP2 is an extreme pressure be-
aring grease from SKF for a wide
range of industrial and automotive
applications. Based on a lithium
soap/mineral oil, the additives provi-
de a good corrosion resistance and
anti-wear protection. Special greases
for food, clean room or high tempe-
rature environments are available
upon request.
1)
as from July 2007
2)
linear ball bearings without factory pre-lubrication and preservative only can be ordered by using the suffix “/VT808”, e.g. LBCR 20 A-2LS/VT808
The double-lip sealing

4
This catalogue covers SKF linear ball
bearings, linear plain bearings and
accessories that can be used to con-
struct economic and simple linear
guidance systems for a wide variety
of applications. In cases where, for
example, load conditions are such
that these bearings and units cannot
be used, other SKF linear guidance
products and systems are available.
For additional information regarding
these other products and systems,
contact your local SKF representative.
This publication includes series 1
and 3 linear ball bearings, manu-
factured to ISO 10285 and linear
plain bearings with the same dimen-
sions.
with an integral double lip seal to
provide maintenance-free operation
under normal conditions. These linear
ball bearings are interchangeable
with all former SKF series 3 bearings.
Most series 3 linear bearing units
are fitted as standard with self-ali-
gning linear ball bearings to accom-
modate misalignment. Other designs
are also available and can be found in
the appropriate tables.
Series 3 linear plain bearings and
units
LPAR and LPAT linear plain bearings
are included in the series 3 size range.
NOTE: SKF linear ball bearings are
coated with a corrosion inhibiting
preservative. Before mounting non
pre-greased linear bearings should
be suitably lubricated.
Series 1 linear ball bearings and
units
Linear ball bearings (LBBR) in series
1 are compact and easy to mount.
These bearings with or without seals
are available in a standard version as
well as a corrosion resistant version.
Linear ball bearing units in this se-
ries, which include a bearing and
housing, are available as single, or
tandem units. Tandem units include
duo and quadro versions.
Series 3 linear ball bearings and
units
Series 3 linear ball bearings include
the advanced cylindrical LBCR and
LBCT design, the self-aligning LBCD
and LBCF design and the LBHT de-
sign with extra high load carrying ca-
pacity. Any of the bearings in the
ISO series 3 are available in a stan-
dard and corrosion resistant version,
Type Size (mm) Max load (N) Comments ISO Page
dynamic / static series No.
LBBR 3 to 50 6 950 / 6 300 1 9
LBCR 5 to 80 37 500 / 32 000 3 20
LBCD 12 to 50 11 200 / 6 950 Self-aligning * 3 21
LBCT 12 to 80 37 500 / 32 000 3 22
LBCF 12 to 50 11 200 / 6 950 Self-aligning * 3 24
LBHT 20 to 50 17 300 / 17 000 3 23
Linear ball bearings
* Automatic compensation of shaft misalignments of up to max. ?30 angular minutes.
Product overview - Linear bearings and units - Standard range

5
LPBR 12 to 50 10 800 / 38 000 1 11
LPAR 5 to 80 29 000 / 100 000 3 28
LPAT 12 to 80 29 000 / 100 000 3 28
Linear bearing units
LUHR 12 to 50 6 950 / 6 300 LBBR bearing 1 14
LUJR 12 to 50 6 950 / 6 300 With shaft seals 1 14
LBBR bearing
LTBR 12 to 50 11 400 / 12 700 Tandem 1 15
LBBR bearing
LTDR 12 to 50 11 400 / 12 700 Duo 1 16
LBBR bearing
LQBR 12 to 50 18 600 / 25 500 Quadro 1 17
LBBR bearing
LUCR 8, 60, 80 37 500 / 32 000 LBCR bearing 3 31
LUCD 12 to 50 11 200 / 6 950 LBCD bearing 3 31
Self-aligning *
Linear plain bearings

6
LUCS 8, 60, 80 37 500 / 32 000 LBCR bearing 3 32
LUCE 12 to 50 11 200 / 6 950 LBCD bearing 3 32
Self-aligning *
LUCT 60, 80 37 500 / 32 000 LBCT bearing 3 33
LUCF 12 to 50 11 200 / 6 950 LBCF bearing 3 33
Self-aligning *
LUCT … BH 20 to 50 17 300 / 17 000 LBHT bearing 3 34
LUND 12 to 50 11 200 / 6 950 LBCD bearing 3 35
Self-aligning *
LUNE 12 to 50 11 200 / 6 950 LBCD bearing 3 36
Self-aligning *
LUNF 12 to 50 11 200 / 6 950 LBCF bearing 3 37
Self-aligning *
LVCR 12 to 80 37 500 / 32 000 LBCR bearing 3 38
LTCD 12 to 50 18 300 / 14 000 Tandem 3 39
LBCD bearing
Self-aligning *
LTCF 12 to 50 18 300 / 14 000 Tandem 3 40
LBCF bearing
Self-aligning *

7
LQCR 8 1 290 / 1 420 Quadro 3 41
LBCR bearing
LQCD 12 to 50 30 000 / 28 000 Quadro 3 41
LBCD bearing
Self-aligning *
LQCF 12 to 50 30 000 / 28 000 Quadro 3 42
LBCF bearing
Self-aligning *
Shaft blocks
LSCS 8 to 80 1 / 3 44
LSHS 12 to 50 LSHS ISO 1 1 / 3 45
LSNS LSNS ISO 3
LEBS A 12 to 50 Tandem 1 / 3 46
LEBS A ISO 1
LEAS … A/B 8 to 50 LEAS A/B ISO 3
Shafts and shaft supports
LJ … 3 to 80 1 / 3 53
LRCB 12 to 80 LRCB (holes) 3 47
LRCC LRCC (no holes)
Linear tables
LZAU 12 to 50 Quadro 3 51
“supported shaft”
LBCF bearing
LZBU … A 8 to 50 Quadro 3 49
LZBU … B “A” = “moving unit” 50
“B” = “moving shafts”
LBCD bearing

8
LBBR linear ball bearings
The LBBR is a patented SKF linear
ball bearing that combines a plastic
cage with hardened steel raceway
segments to guide the ball sets. The
bearing conforms to dimension se-
ries 1 according to ISO 10285.
The LBBR raceway segments ha-
ve been designed to fully utilize the
entire length of the load zone to in-
crease bearing capacity and extend
bearing service life.
The plastic cage has been rede-
signed to provide optimum perfor-
mance. All ball recirculations are de-
signed to offer no resistance to the
cage on the running-in and runout
Stainless steel variant
LBBR linear ball bearings are also
available with stainless steel balls and
raceways for wet or corrosive envi-
ronments. The stainless steel variant
is identified by a HV6 suffix in the de-
signation, e.g. LBBR 16-2LS/HV6.
When used in combination with SKF
stainless steel shafts, it is possible to
create a guidance system made enti-
rely of stainless steel.
of the recirculation. The redesigned
cage also accommodates larger balls
to provide increased load capacity
and service life.
The sealed variant is fitted with
integral double lip seals. These seals
have an inner lip to keep lubricant in
the bearing; the outer lip acts like a
wiper seal to keep contaminants out
of the bearing.
Unsealed bearings are fitted with
non-contacting shields to protect the
bearing from large contaminant par-
ticles. LBBR linear ball bearings do
not need to be secured axially in the
housing provided the housing bore is
sized correctly.
Linear ball bearings, ISO series 1

9
Linear ball bearings – LBBR
- with raceway plates
1)
Width 22 does not correspond to series 1 in ISO standard 10285.
2)
not factory pre-lubricated
Dimensions No. of Basic load Mass Designations
ball rows ratings
Linear ball bearings stainless steel
dyn. stat. standard with 2 double standard with 2 double
Fw D C C CO design lip seals design lip seals
mm — N kg —
3 7 10 4 60 44 0,0007 LBBR 32)
LBBR 3-2LS2)
LBBR 3/HV62)
LBBR 3-2LS/HV62)
4 8 12 4 75 60 0,001 LBBR 42)
LBBR 4-2LS2)
LBBR 4/HV62)
LBBR 4-2LS/HV62)
5 10 15 4 170 129 0,002 LBBR 52)
LBBR 5-2LS2)
LBBR 5/HV62)
LBBR 5-2LS/HV62)
6 12 221)
4 335 270 0,006 LBBR 6A LBBR 6A-2LS LBBR 6A/HV6 LBBR 6A-2LS/HV6
8 15 24 4 490 355 0,007 LBBR 8 LBBR 8-2LS LBBR 8/HV6 LBBR 8-2LS/HV6
20 28 30 6 1 160 800 0,021 LBBR 20 LBBR 20-2LS LBBR 20/HV6 LBBR 20-2LS/HV6
25 35 40 7 2 120 1 560 0,047 LBBR 25 LBBR 25-2LS LBBR 25/HV6 LBBR 25-2LS/HV6
LBBR with double lip seals
Appropriate special seals
Dimensions Designations
Fw D B1
mm —
25 35 4 SP-25x35x4
30 40 4 SP-30x40x4
40 52 5 SP-40x52x5
50 62 5 SP-50x62x5
Fw D B1
mm —
6 12 2 SP-6x12x2
8 15 3 SP-8x15x3
10 17 3 SP-10x17x3
12 19 3 SP-12x19x3
14 21 3 SP-14x21x3
16 24 3 SP-16x24x3
20 28 4 SP-20x28x4
Accessories for LBBR (shaft seals)
SP
The outside diameter tolerance of the linear ball bearings is such that no additional axial fixation is required when the
bearings are fitted into a bore with a tolerance of J7 or J6.

10
LPBR linear plain bearings, which
have the same dimensions as LBBR
linear ball bearings, are made out of
PAS-LX (Copolymeres Polyoxyme-
thylen) with a special polyethylene to
provide smooth, stick-slip-free ope-
ration. These linear plain bearings
are self lubricating under normal
conditions and require minimal
maintenance. They have a high static
load carrying capacity and are resis-
tant to shock loads.
SKF recommends a light coating
of lubricant during installation to im-
prove the performance during the
running-in period even if the be-
arings are to be used “lubricant-free”.
LPBR linear plain bearings are inten-
ded for applications where there are
heavy shock loads and/or vibrations
or high accelerations and speeds
when the bearing is unloaded. Under
these operating conditions linear
plain bearings provide longer service
life than linear ball bearings. Howe-
ver, increased friction must be ex-
pected.
Linear plain bearings, ISO series 1

11
Linear plain bearings – LPBR
- closed design
LPBR
Dimensions Basic load ratings Mass Designation
dyn. at stat. Linear plain
0,1 m/s 4 m/s bearing
Fw D C C4 C C C0
-0,07
mm N kg —
12 19,19 28 10 965 24 3 350 0,006 LPBR 12
14 21,21 28 12 1 370 34 4 750 0,007 LPBR 14
16 24,23 30 12 1 530 38 5 400 0,009 LPBR 16
20 28,24 30 13 2 080 52 7 350 0,011 LPBR 20
25 35,25 40 17 3 400 85 12 000 0,024 LPBR 25
30 40,27 50 20 4 800 120 17 000 0,033 LPBR 30
40 52,32 60 24 7 650 193 27 000 0,063 LPBR 40
50 62,35 70 27 10 800 270 38 000 0,088 LPBR 50
The outside diameter tolerance of the linear plain bearings is such that no additional axial fixation is required when the
bearings are fitted into a bore with a tolerance of J7 or J6.
Fw D B1
mm —
25 35 4 SP-25x35x4
30 40 4 SP-30x40x4
40 52 5 SP-40x52x5
50 62 5 SP-50x62x5
Fw D B1
mm —
12 19 3 SP-12x19x3
14 21 3 SP-14x21x3
16 24 3 SP-16x24x3
20 28 4 SP-20x28x4
Accessories for LPBR (shaft seals)
SP

12
Linear bearing units incorporating
closed ISO series 1 bearings are
available for applications where the
shaft is only supported at each end.
These cost-effective bearing units
are extremely compact and can ac-
commodate loads exceeding 25 000
N (e.g. LQBR 50-2LS; see also page
17).
The maximum permissible angu-
lar misalignment is 15 minutes of
arc. When fitted with double lip seals,
LBBR bearings enable these units to
operate without relubrication, under
normal operating conditions (see
page 3).
Shafting cut to length is available.
For additional information, see the
chapter “Precision shafts”, page 52.
For corrosive or wet environ-
ments, SKF recommends stainless
steel shafting and either aluminium
housings with stainless steel linear
ball bearings e.g. LBBR 20-2LS/HV6
or aluminium housings fitted with
plain bearings.
Linear bearing units, ISO series 1

13
LUHR/LUJR linear bearing units
consist of a housing of extruded alu-
minium and the compact LBBR line-
ar ball bearing or the LPBR linear
plain bearing of similar dimensions.
The LUHR design, for shaft dia-
meters from 12 to 50 mm, is availa-
ble fitted as standard with LBBR li-
near ball bearings with or without
integrated seals or with LPBR linear
plain bearings (designation LUHR …
PB).
For highly contaminated environ-
ments, extended LUJR linear bearing
units are available. These incorporate
LBBR linear ball bearings and two
SP-type shaft seals. LUHR and LUJR
linear bearing units cannot be relu-
bricated.
LQBR quadro linear bearing units –
contain four (4) LBBR linear ball be-
arings within a sealed aluminium
housing. The duo configuration and
the space between the bearings per-
mit the fitting of a linear drive. Duo
and quadro linear bearing units ba-
sed on LBBR linear ball bearings can
be used to make compact, simple ta-
ble configurations. For suitable shaft
blocks (LEBS), see page 46.
LTBR tandem linear bearing units
consist of a one-piece extruded alu-
minium housing and two LBBR line-
ar ball bearings mounted one behind
the other. These units are fitted with
sealed bearings as standard and
cannot be relubricated. They are
particularly suitable for tables or sli-
des of any width.
LTDR duo linear bearing units are
characterised by an aluminium hou-
sing that contains two LBBR-2LS li-
near ball bearings in parallel. The
space between the two bearings and
the duo configuration permits easy
fitting of a linear drive.
LTDR LQBR
LUJR LUHR LTBR

14
Linear bearing units – LUHR/LUJR
- with closed housing and LBBR linear ball bearings
Dimensions Basic load Mass Designations
ratings
Design Linear bearing unit
dyn. stat. LUHR LUJR without with with
Fw A A1 C1 Da H H1 H2 H3 L J N1)
N1
1)
C C0 seal double lip shaft
±0,01
seal seals
mm — N kg
12 28 35 34 19 17 33 16 11 40 29 4,3 M 5 695 510 0,08 0,10 LUHR 12 LUHR 12-2LS LUJR 12
16 30 37 36 24 19 38 18 11 45 34 4,3 M 5 930 630 0,10 0,12 LUHR 16 LUHR 16-2LS LUJR 16
20 30 39 38 28 23 45 22 13 53 40 5,3 M 6 1 160 800 0,14 0,18 LUHR 20 LUHR 20-2LS LUJR 20
25 40 49 48 35 27 54 26 18 62 48 6,6 M 8 2 120 1 560 0,25 0,30 LUHR 25 LUHR 25-2LS LUJR 25
Da
A
Fw
LUHR
With double lip seals
LUJR
With shaft seals
1)
For screws with internal hexagon to DIN 912 / ISO 4762.
For suitable shaft blocks for these bearing units, designation LSHS, see page 45.
Linear bearing units of the LUHR design are also available fitted with LPBR linear plain bearings.
Designations: e. g. LUHR 20 PB.
A1
C1

15
Tandem linear bearing units – LTBR
- with closed housing and LBBR linear ball bearings
ratings
dyn. stat. Linear bearing unit
with double lip seals
Fw A C Da H H1 H2 H3 J J1 L N1)
N1
1)
C C0
±0,01
mm — N kg
12 60 28 19 17 33 16 11 29 35 40 4,3 M 5 1 140 1 020 0,17 LTBR 12-2LS
16 65 30 24 19 38 18 11 34 40 45 4,3 M 5 1 530 1 270 0,22 LTBR 16-2LS
20 65 30 28 23 45 22 13 40 45 53 5,3 M 6 1 900 1 600 0,31 LTBR 20-2LS
25 85 40 35 27 54 26 18 48 55 62 6,6 M 8 3 450 3 150 0,54 LTBR 25-2LS
30 105 50 40 30 60 29 18 53 70 67 6,6 M 8 5 200 5 400 0,80 LTBR 30-2LS
40 125 60 52 39 76 38 22 69 85 87 8,4 M 10 9 000 9 000 1,57 LTBR 40-2LS
50 145 70 62 47 92 46 26 82 100 103 10,5 M 12 11 400 12 700 2,51 LTBR 50-2LS
C
Fw
Da
A
LTBR
With double lip seals on the outside
1)
For suitable shaft blocks for these bearing units, designation LSHS, see page 45.

16
Duo linear bearing units – LTDR
- with closed housing and LBBR linear ball bearing
Dimensions Basic load ratings Mass Designations
dyn stat. Linear bearing unit
with double lip seals
Fw A Da H H1 H2 H3 J L L1 N1)
N1
1)
C C0
±0,01
mm — N kg —
12 28 19 15 30 14 11 69 80 40 4,3 M 5 1 140 1 020 0,15 LTDR 12-2LS
16 30 24 17,5 35 16,5 11 86 96 52 4,3 M 5 1 530 1 270 0,22 LTDR 16-2LS
20 30 28 20 40 19 13 103 115 63 5,3 M 6 1 900 1 600 0,30 LTDR 20-2LS
25 40 35 25 50 24 18 123 136 75 6,6 M 8 3 450 3 150 0,58 LTDR 25-2LS
30 50 40 28 56 27 18 133 146 80 6,6 M 8 5 200 5 400 0,85 LTDR 30-2LS
40 60 52 35 70 34 22 166 184 97 8,4 M 10 9 000 9 000 1,56 LTDR 40-2LS
50 70 62 40 80 39 26 189 210 107 10,5 M 12 11 400 12 700 2,21 LTDR 50-2LS
Fw Da
A
LTDR
1)
For screws with internal hexagon to DIN 912 / ISO 4762 at the centre (0,5 A) of the linear bearing unit.
For suitable shaft blocks for these bearing units, short designation LEBS … A, see page 46.

17
Quadro linear bearing units – LQBR
- with closed housing and LBBR linear ball bearing
dyn. stat. Linear ball
baring unit
Fw A C Da H H1 H2 H3 J J1 L L1 N1)
N1
1)
C C0 with double
±0,01
lip seals
mm — N kg —
12 70 28 19 15 30 14 11 69 59 80 40 4,3 M 5 1 860 2 040 0,38 LQBR 12-2LS
16 80 30 24 17,5 35 16,5 11 86 70 96 52 4,3 M 5 2 500 2 550 0,57 LQBR 16-2LS
20 85 30 28 20 40 19 13 103 73 115 63 5,3 M 6 3 100 3 200 0,82 LQBR 20-2LS
25 100 40 35 25 50 24 18 123 87 136 75 6,6 M 8 5 600 6 300 1,43 LQBR 25-2LS
30 130 50 40 28 56 27 18 133 117 146 80 6,6 M 8 8 500 10 800 2,15 LQBR 30-2LS
40 150 60 52 35 70 34 22 166 132 184 97 8,4 M 10 14 600 18 000 3,83 LQBR 40-2LS
50 175 70 62 40 80 39 26 189 154 210 107 10,5 M 12 18 600 25 500 5,40 LQBR 50-2LS
Fw
Da
A
C
Distance between holes J1
LQBR
1)
For 4 screws with internal hexagon to DIN 912 / ISO 4762.
For suitable shaft blocks for these bearing units, designation LEBS … A, see page 46.
J1
J
Distance between holes J1

18
LBC linear ball bearings, with their
high load carrying capacity, are avai-
lable for shaft diameters from 5 to
80 mm. As with all SKF linear ball
bearings, they are available with a
choice of seals or shields. 5 and 8
mm LBC linear ball bearings that are
full contained within their housings,
are self-retaining so that no additio-
nal axial location is required under
normal operating conditions.
All LBC linear ball bearings are
generally designed for grease lubri-
cation. Sizes from 12-80 mm featu-
re cages with a through-bored radial
hole to accommodate a grease fit-
ting, which provides longitudinal and
axial fixation. Grease may be applied
directly to the shaft or bearing via
this hole. For the relubrication of
LBHT linear ball bearings the hou-
sing must be provided with a grease
distribution channel in the bore or
housing. The grease is then forced
onto the raceway between the load
carrying plates. Information on the
location of these attachment
holes and grease fittings is shown on
pages 25 and 26.
LBCR linear ball bearings, with their
optimised raceway segments and
position for maximum load carrying
capacity, can be mounted in closed
as well as adjustable housings. When
these bearings are mounted in a clo-
sed housing, the tolerance of the ins-
cribed diameter of the ball set and
hence the operating clearance is de-
termined by the tolerance of the
housing bore. When mounted in
slotted housings the linear guides
can be adjusted to provide either
operating clearance or preload de-
pending on the needs of the applica-
tion. LBCR linear ball bearings must
be located in the axial direction, for
example via the grease fitting or a
fixation pin.
Stainless steel variant
LBC linear ball bearings are also
available with stainless steel balls
and raceways for wet or corrosive
environments. The stainless steel va-
riant is identified by adding a HV6
suffix to the designation e.g. LBCR
16-2LS/HV6. When used in combi-
nation with SKF stainless steel
shafts, it is possible to create a gui-
dance system made entirely of stain-
less steel.
LBCR linear ball bearings consist of
a cage and raceway segments to
guide the balls and either seals or
shields. By virtue of their exceptio-
nally long track length and the ma-
chined raceway osculation, they are
able to accommodate heavy loads.
Linear ball bearings, ISO series 3
LBHT
LBCF
LBCT
LBCD
LBCR

19
LBCD linear ball bearings are a vari-
ant of the LBCR design. The primary
feature of this bearing is its self-ali-
gning capability that accommodates
tilting of the whole bearing through
an angle of ±30 minutes of arc. This
tilting feature compensates for misa-
lignment, which may be caused by
inaccuracies in fitting or manufactu-
ring (housing bore diameter), or by
significant bending of an unsuppor-
ted shaft. The self-aligning feature
cannot, however, compensate for two
non-parallel shafts in an assembly.
The cage, seals and shields have
been optimized to accommodate the
self aligning feature so that the be-
aring and especially the shields or
seals remain concentric with the
shaft.
All other characteristics of the
LBCR linear ball bearings are also
valid for the self-aligning LBCD de-
sign. LBCD linear ball bearings must
always be firmly fixed in the axial
direction.
LBCF linear ball bearings are a self-
aligning version of the LBCT design.
These bearings are available in sizes
ranging from 12 to 50 mm. LBCF li-
near ball bearings must always be
fixed to prevent axial and turning
movements.
LBCT and LBHT linear ball bearings
are used in applications where seve-
ral shaft supports, or a continuous
shaft support is needed to prevent
shaft bending. Due to the open de-
sign of the LBCT bearing, one race-
way segment is eliminated. However,
this does not have a significant effect
on its load carrying capacity. The ra-
ceway segments of the LBHT howe-
ver, have been optimized so that it
has the same number of raceway
segments as a closed design bearing.
Both the LBCT and the LBHT are
available for shaft diameters ranging
from 20 to 50 mm. Unlike other
open design linear ball bearings, the-
se bearings feature a shoulder in the
cage on each side of the opening
which acts like a gap-type seal. Open
designed LBCT/LBHT linear ball be-
arings must always be fixed to pre-
vent axial and turning movements.

20
Linear ball bearings – LBCR
- closed design
Dimensions No. of Basic load ratings Mass Designations
ball rows Linear ball bearing with
dyn. stat. 2 shields 2 double lip seals
Fw D C C3 C C0
mm — N kg
5 12 22 12 4 280 210 0,005 LBCR 51)
LBCR 5- 2LS1)
8 16 25 14 4 490 355 0,009 LBCR 8 LBCR 8- 2LS
12 22 32 20 6 1 160 980 0,016 LBCR 12 A LBCR 12 A-2LS
16 26 36 22 6 1 500 1 290 0,021 LBCR 16 A LBCR 16 A-2LS
20 32 45 28 7 2 240 2 040 0,043 LBCR 20 A LBCR 20 A-2LS
25 40 58 40 7 3 350 3 350 0,085 LBCR 25 A LBCR 25 A-2LS
30 47 68 48 7 5 600 5 700 0,13 LBCR 30 A LBCR 30 A-2LS
40 62 80 56 7 9 000 8 150 0,26 LBCR 40 A LBCR 40 A-2LS
50 75 100 72 7 13 400 12 200 0,46 LBCR 50 A LBCR 50 A-2LS
60 90 125 95 7 20 400 18 000 0,82 LBCR 60 A LBCR 60 A-2LS
80 120 165 125 7 37 500 32 000 1,9 LBCR 80 A LBCR 80 A-2LS
LBCR
With shields
1)
not factory pre-lubricated
For axial location and protection against relative motion see pages 25/26.
Upon request these bearings are available in stainless steel execution.
Designation: e.g. LBCR 20 A-2LS/HV6
Linear ball bearings with one seal are available on request.
LBCR

21
ball rows . Linear ball bearings with
dyn. stat 2 shields 2 double lip seals
Fw D C C3 C C0
mm — N kg
12 22 32 20 6 1 080 815 0,015 LBCD 12 A LBCD 12 A-2LS
16 26 36 22 6 1 320 865 0,020 LBCD 16 A LBCD 16 A-2LS
20 32 45 28 7 2 000 1 370 0,042 LBCD 20 A LBCD 20 A-2LS
25 40 58 40 7 2 900 2 040 0,083 LBCD 25 A LBCD 25 A-2LS
30 47 68 48 7 4 650 3 250 0,13 LBCD 30 A LBCD 30 A-2LS
40 62 80 56 7 7 800 5 200 0,26 LBCD 40 A LBCD 40 A-2LS
50 75 100 72 7 11 200 6 950 0,44 LBCD 50 A LBCD 50 A-2LS
Designation: e.g. LBCD 20 A-2LS/HV6
Linear ball bearings – LBCD
- self aligning and closed design
LBCD
With shields
LBCD
Retaining rings according to DIN 471.

22
Linear ball bearings – LBCT
- open design
Fw D C C3 E1)
a C C0
mm Deg. — N kg
12 22 32 20 7,6 78 5 1 160 980 0,013 LBCT 12 A LBCT 12 A-2LS
16 26 36 22 10,4 78 5 1 500 1 290 0,017 LBCT 16 A LBCT 16 A-2LS
20 32 45 28 10,8 60 6 2 240 2 040 0,036 LBCT 20 A LBCT 20 A-2LS
25 40 58 40 13,2 60 6 3 350 3 350 0,071 LBCT 25 A LBCT 25 A-2LS
30 47 68 48 14,2 50 6 5 600 5 700 0,114 LBCT 30 A LBCT 30 A-2LS
40 62 80 56 18,7 50 6 9 000 8 150 0,23 LBCT 40 A LBCT 40 A-2LS
50 75 100 72 23,6 50 6 13 400 12 200 0,39 LBCT 50 A LBCT 50 A-2LS
60 90 125 95 29,6 54 6 20 400 18 000 0,72 LBCT 60 A LBCT 60 A-2LS
80 120 165 125 38,4 54 6 37 500 32 000 1,67 LBCT 80 A LBCT 80 A-2LS
LBCT
With shields
LBCT
1)
Smallest sector width for diameter Fw. For axial location and protection against relative motion see pages 25/26.
Designation: e.g. LBCT 20 A-2LS/HV6

23
Linear ball bearings – LBHT
- open design, for heavy duty
Fw D C C3 E1)
a C C0
mm Deg. — N kg
20 32 45 28 10,8 60 8 2 650 2 650 0,043 LBHT 20 A LBHT 20 A-2LS
25 40 58 40 13,2 60 9 4 900 5 100 0,095 LBHT 25 A LBHT 25 A-2LS
30 47 68 48 14,2 50 10 7 200 8 000 0,16 LBHT 30 A LBHT 30 A-2LS
40 62 80 56 18,7 50 10 11 600 11 400 0,33 LBHT 40 A LBHT 40 A-2LS
50 75 100 72 23,6 50 10 17 300 17 000 0,56 LBHT 50 A LBHT 50 A-2LS
LBHT
With shields
LBHT
1)
Designation: e.g. LBHT 20 A-2LS/HV6

24
Fw D C C3 E1)
a C C0
mm Deg. — N kg
12 22 32 20 7,6 78 5 1 080 815 0,012 LBCF 12 A LBCF 12 A-2LS
16 26 36 22 10,4 78 5 1 320 865 0,016 LBCF 16 A LBCF 16 A-2LS
20 32 45 28 10,8 60 6 2 000 1 370 0,035 LBCF 20 A LBCF 20 A-2LS
25 40 58 40 13,2 60 6 2 900 2 040 0,07 LBCF 25 A LBCF 25 A-2LS
30 47 68 48 14,2 50 6 4 650 3 250 0,11 LBCF 30 A LBCF 30 A-2LS
40 62 80 56 18,7 50 6 7 800 5 200 0,22 LBCF 40 A LBCF 40 A-2LS
50 75 100 72 23,6 50 6 11 200 6 950 0,37 LBCF 50 A LBCF 50 A-2LS
LBCF
With shields
LBCF
1)
Designation: e.g. LBCF 20 A-2LS/HV6
Linear ball bearings – LBCF
- self-aligning and open design

25
Axial and rotational fixation
- for LBC and LPA linear bearings
Dimensions Design1)
Appropriate Grub Pins4)
grease nipples2)
screws3)
Diameter
Fw K1
7)
K2
8)
s
mm — mm
56)
- - - - - - -
86)
- - - - - - -
12 3,0 3,0 - 1 VN-LHC 20 M 4 3
16 3,0 - - 2 VN-LHC 20 M 4 3
20 3,0 - - 2 VN-LHC 20 M 4 3
25 3,5 3,0 1,5 3 VN-LHC 40 M 5 3 / 3,5
30 3,5 3,0 2 4 VN-LHC 40 M 5 3 / 3,5
40 3,5 3,0 1,5 4 VN-LHC 40 M 5 3 / 3,5
50 4,5 5,0 2,5 4 VN-LHC 50 M 6 5 / 4,5
60 6,0 2,5 5 4 VN-LHC 80 M 8 6 5)
80 8,0 2,5 5 4 VN-LHC 80 M 8 8 5)
Design 1 Design 2
Design 3 Design 4
1)
All linear plain bearings of Design 2
2)
Recommendations for holes to take grease nipples: see page 26.
3)
Grub screws according to DIN 417 and ISO 7435 or DIN 915 and ISO 4028.
4)
Straight pins according to DIN 7, slotted pins - DIN 1481 or grooved pins - DIN 1470 and DIN 1471.
5)
Grub screw according to DIN 551 / ISO 4766 or DIN 913 / ISO 4026.
6)
Linear ball bearings are self-retaining when mounted in housings of at least bearing length.
Retaining rings are required with shorter housings.
7)
For relubrication as well as location of linear bearing in SKF housings.
8)
Alternative bore hole for location in specific housings from other manufacturers.
FW
FW FW
FW

26
Dimensions Appropriate Dimensions Appropriate
grub screws grub screws
nach DIN 417 nach DIN 417
Fw K1 h a1 or DIN 915 Fw K1 h a1 or DIN 915
mm degrees —
20 2,6 ± 0,05 1,3 ± 0,2 47° M 4 50 4,1 ± 0,05 1,8 ± 0,3 39° M 6
25 2,6 ± 0,05 1,3 ± 0,2 55° 12' M 4
30 3,6 ± 0,05 1,4 ± 0,2 39° 15' M 5
40 3,6 ± 0,05 1,4 ± 0,2 38° 51' M 5
LBHT
Dimensions Designations Attachment dimensions
Bearing Grease nipple Grease nipple Housing
Fw G L L1 L2 k1 e SW Da Ga Gb Na
±0,2
mm — mm — mm — mm
12 M 4 7,7 1,5 3,5 3,0 5,5 5 VN-LHC 20 22 M 4 3,8 13
16 M 4 7,7 1,5 3,5 3,0 5,5 5 VN-LHC 20 26 M 4 3,8 13
20 M 4 7,7 1,5 3,5 3,0 5,5 5 VN-LHC 20 32 M 4 3,8 13
25 M 5 11,1 2,0 5,0 3,5 6,6 6 VN-LHC 40 40 M 5 5,2 15
30 M 5 11,1 2,0 5,0 3,5 6,6 6 VN-LHC 40 47 M 5 5,2 15
40 M 5 11,1 2,0 5,0 3,5 6,6 6 VN-LHC 40 62 M 5 5,2 15
50 M 6 14,8 2,5 7,0 4,5 7,8 7 VN-LHC 50 75 M 6 7,2 15
60 M 8 20,5 3,5 10,5 6 11,1 10 VN-LHC 80 90 M 8 11,2 18
80 M 8 20,5 3,5 10,5 6 11,1 10 VN-LHC 80 120 M 8 5,2 18
Axial and rotational fixation
- for LBHT linear ball bearings
Grease nipples
- for LBC and LPA linear bearings

27
Linear plain bearings, ISO series 3
LPAT
LPAR
LPAR and LPAT linear plain bearings
have the same external dimensions
as LBC linear ball bearings. These
bearings, which do not have seals or
shields, are available in diameters
ranging from 5 to 80 mm (LPAR)
and from 12 to 80 mm (LPAT).
All variants, except for LPAR 5 and 8
can be relubricated. Bearings with-
out a grease fitting should be held in
place by a retaining ring (according
to DIN 471) on either side of the be-
aring. Bearings with a grease fitting
can be fixed via the grease fitting.

28
Linear plain bearings – LPAR/LPAT
- closed and open design
dyn. at stat. Design Linear plain bearing
0,1 m/s 4 m/s closed open closed open
Fw D C C3 C4 E1)
a C C C0
-0,05
mm Deg. N kg —
5 12 22 12 7 - - 280 7 980 0,003 - LPAR 5 -
8 16 25 14 8 - - 510 13 1 800 0,005 - LPAR 8 -
12 22 32 20 10 7,6 78 965 24 3 350 0,012 0,008 LPAR 12 LPAT 12
16 26 36 22 12 10,4 78 1 530 38 5 400 0,016 0,012 LPAR 16 LPAT 16
20 32 45 28 15 10,8 60 2 400 60 8 300 0,03 0,023 LPAR 20 LPAT 20
25 40 58 40 20 13,2 60 4 000 100 14 000 0,06 0,045 LPAR 25 LPAT 25
30 47 68 48 23 14,2 50 5 500 137 19 300 0,09 0,07 LPAR 30 LPAT 30
40 62 80 56 25 18,7 50 8 000 200 28 000 0,20 0,15 LPAR 40 LPAT 40
50 75 100 72 30 23,6 50 12 000 300 41 500 0,34 0,26 LPAR 50 LPAT 50
60 90 125 95 35 29,6 54 16 600 415 60 000 0,63 0,46 LPAR 60 LPAT 60
80 120 165 125 45 38,4 54 29 000 720 100 000 1,50 1,10 LPAR 80 LPAT 80
LPAR LPAR
closed
LPAT
open
1)
Smallest sector width for diameter Fw.

29
A comprehensive range of linear ball
bearing and plain bearing units are
available. In addition to the basic de-
sign housing containing a single be-
aring, flanged units are also available
as/or tandem and quadro units.
Linear bearing units consist of a
light-weight, cast aluminium housing
that has been optimized to provide
high strength and stiffness. Due to
their light weight, acceleration and
inertia forces are kept to a minimum.
LUC linear bearing units are available
for shaft diameters ranging from 8 to
80 mm.
available fitted with LPAR linear plain
bearings (designation LUCR … PA) on
request. Units fitted with an 8 mm
diameter LPAR linear plain bearing
cannot be relubricated. Therefore,
these bearings should be axially lo-
cated with retaining rings. The desig-
nation of these units is:
LUCR/LUCR … PA.
LUCD/LUCR linear bearing units
offer a simple means of creating an
economical linear guidance system.
LUCD linear bearing units (for shaft
diameters ranging from 12 to 80
mm) are normally supplied with a
self-aligning LBCD shielded linear
ball bearing. LUCR linear bearing
units (for shaft diameters ranging
from 8 to 80 mm) are supplied with
a rigid LBCR shielded linear ball be-
aring. A grease fitting serves to re-
tain the bearing axially and prevent it
from turning. These units are also
Linear bearing units, ISO series 3
LQCR LTCF LUND
LUCF LUCE LVCR

30
LUCE/LUCS linear bearing units are
similar in design to the LUCD/LUCR
units but instead of a closed housing,
these units have a open housing with
an adjustment screw. These units are
typically used for arrangements re-
quiring zero clearance or preload.
LUCE/LUCD linear ball bearing
units are supplied with self-aligning
LBCD linear ball bearings. LUCS/
LUCR linear ball bearing units are
supplied with rigid LBCR linear ball
bearings. These units are not availa-
ble with linear plain bearings.
LUCF/LUCT linear bearing units are
designed for applications where, be-
cause of heavy loads and/or long
guidance lengths, the shaft must be
supported either partially or along its
entire length. For this reason, the
housings as well as the bearings ha-
ve an open design. In all other re-
spects these units are similar to the
closed LUCD/LUCR units. Open linear
bearing units are available as stan-
dard with an LBCF self-aligning line-
ar ball bearing or a rigid LBCT linear
ball bearing.
For the 12 to 80 mm sizes, the
bearing is retained axially by means
of a grease fitting. Where high load
carrying capacity or longer service li-
fe is required, LUCT units can also be
supplied fitted with LBHT linear ball
bearings in sizes ranging from 20 to
50 mm. (Designation: LUCT … BH).
These units can also be relubricated.
Bearing units may also be supplied
fitted with linear plain bearings (De-
signation LUCT … PA).
LUN linear bearing units are sup-
plied as standard with shielded or
sealed self-aligning linear ball be-
arings. Three versions are available:
closed (LUND), adjustable (LUNE)
and open, adjustable (LUNF). They
are suitable for shaft diameters from
12 to 50 mm.
In contrast to the LUC linear be-
aring unit described above, the ex-
size 8 units, relubrication is possible.
SKF quadro units are available in two
versions: closed (LQCD) and open
(LQCF).
Quadro units used in combination
with LEAS tandem shaft blocks (clo-
sed design) or LRCB shaft supports
(open design) makes it possible to
create simple linear slides and tables.
Details of tables are provided on pa-
ges 49 to 51 of this catalogue.
The LQC design is available for
shaft sizes from 8 to 50 mm. An ex-
ception is the size 8 unit that is fitted
with an LBCR 8 A-LS non self-ali-
gning linear ball bearing (full desig-
nation LQCR 8 A-2LS). LQCF units
are suitable for shaft diameters from
12 to 50 mm.
All quadro units can be attached
to their support surface either with
socket head cap screws inserted
from below or via the threaded holes
in the housing.
Note
All linear ball bearing units (12 to
50 mm) can be fitted with non-self-
aligning linear ball bearings on re-
quest.
truded aluminium housing envelops
the linear ball bearing along its entire
length. Two diagonally opposed at-
tachment holes are provided on the
underside of the housing to locate
the bearing axially and to keep it
from turning. These units can be
relubricated.
LVCR flanged linear bearing units
consist of a closed flanged cast iron
housing fitted with a rigid LBCR line-
ar ball bearing (12 to 80 mm). The
bearing, sealed on both sides, is lo-
cated axially by a dowel pin. The
flange is machined on both faces to
enable mounting on the front or rear
in either direction. Flanged linear be-
aring units are not designed for re-
lubrication.
LTC tandem linear bearing units
consist of a solid extruded aluminium
housing and two self-aligning linear
ball bearings mounted one behind
the other. A grease fitting is used to
secure each bearing in position to
prevent it from turning.
Tandem linear bearing units en-
able the construction of linear gui-
dance systems such as tables of any
required width. The housing can be
attached to its supporting surface
from below using socket head cap
screws or from above via the two
threaded holes in the housing. These
tandem units are available in two
versions: closed (LTCD) or open
(LTCF). The linear ball bearings are
supplied with one seal on the exter-
nal end, as standard. Shaft diameters
range from 12 to 50 mm.
LQC quadro linear bearing units
consist of a one-piece aluminium
housing with two bores arranged in
parallel, each with two self-aligning
linear ball bearings. The bearings are
sealed on the external ends only. The
bearings can be retained in position
axially and also prevented from tur-
ning via the grease fitting. Except for

31
Linear bearing units – LUCR/LUCD
closed housing, can be relubricated
- LUCR version using LBCR bearing
- LUCD version using LBCD bearing, self-aligning
ratings Linear ball bearing unit with
Fw A A1 C Da H H1 H2 J J1 J2 L N2)
N2
2)
C C0
±0,01
mm N kg
8 27 14 25 16 15 5,5 28 25 20 35 45 3,2 5,3 490 355 0,028 LUCR 81)
LUCR 8-2LS1)
12 31 20 32 22 18 6 34,5 32 23 42 52 4,3 5,3 1 080 815 0,053 LUCD 12 LUCD 12-2LS
16 34,5 22 36 26 22 7 40,5 40 26 46 56 4,3 5,3 1 320 865 0,069 LUCD 16 LUCD 16-2LS
20 41 28 45 32 25 8 48 45 32 58 70 4,3 6,4 2 000 1 370 0,144 LUCD 20 LUCD 20-2LS
25 52 40 58 40 30 10 58 60 40 68 80 5,3 6,4 2 900 2 040 0,285 LUCD 25 LUCD 25-2LS
30 59 48 68 47 35 10 67 68 45 76 88 6,4 6,4 4 650 3 250 0,4 LUCD 30 LUCD 30-2LS
40 74 56 80 62 45 12 85 86 58 94 108 8,4 8,4 7 800 5 200 0,72 LUCD 40 LUCD 40-2LS
50 66 72 100 75 50 14 99 108 50 116 135 8,4 10,5 11 200 6 950 1,19 LUCD 50 LUCD 50-2LS
60 84 95 125 90 60 18 118 132 65 138 160 10,5 13 20 400 18 000 2,17 LUCR 60 LUCR 60-2LS
80 113 125 165 120 80 22 158 170 90 180 205 13 13 37 500 32 000 5,15 LUCR 80 LUCR 80-2LS
With shields
1)
Linear ball bearings fitted to these units are secured with retaining rings according to DIN 471, cannot be relubricated, not self-aligning.
2)
For screws with internal hexagon to DIN 912 / ISO 4762
LUCD/LUCR bearing units are available on request in stainless steel execution.
Designation: e.g. LUCD/LUCR 20-2LS/HV6
LUCD linear ball bearing units can also be fitted with rigid linear ball bearings of type LBCR. Designation: e.g. LUCR 12-2LS.
LUCR/LUCD linear bearing units Fw 8-80 are also available fitted with linear plain bearings. Designation: e.g. LUCR 20 PA.
For suitable shaft blocks LSCS/LSNS for these bearing units, see pages 44/45.

32
Linear bearing units – LUCS/LUCE
slotted housing, can be relubricated, clearance adjustable
- LUCS version using LBCR bearing,
- LUCE version using LBCD bearing, self-aligning
ratings Linear bearing unit with
N2
2)
C C0
±0,01
mm N kg —
8 27 14 25 16 15 5,5 28 25 20 35 45 3,2 5,3 490 355 0,028 LUCS 81)
LUCS 8-2LS1)
12 31 20 32 22 18 6 34,5 32 23 42 52 4,3 5,3 1 080 815 0,053 LUCE 12 LUCE 12-2LS
16 34,5 22 36 26 22 7 40,5 40 26 46 56 4,3 5,3 1 320 865 0,069 LUCE 16 LUCE 16-2LS
20 41 28 45 32 25 8 48 45 32 58 70 4,3 6,4 2 000 1 370 0,144 LUCE 20 LUCE 20-2LS
25 52 40 58 40 30 10 58 60 40 68 80 5,3 6,4 2 900 2 040 0,285 LUCE 25 LUCE 25-2LS
30 59 48 68 47 35 10 67 68 45 76 88 6,4 6,4 4 650 3 250 0,4 LUCE 30 LUCE 30-2LS
40 74 56 80 62 45 12 85 86 58 94 108 8,4 8,4 7 800 5 200 0,72 LUCE 40 LUCE 40-2LS
50 66 72 100 75 50 14 99 108 50 116 135 8,4 10,5 11 200 6 950 1,19 LUCE 50 LUCE 50-2LS
60 84 95 125 90 60 18 118 132 65 138 160 10,5 13 20 400 18 000 2,17 LUCS 60 LUCS 60-2LS
80 113 125 165 120 80 22 158 170 90 180 205 13 13 37 500 32 000 5,15 LUCS 80 LUCS 80-2LS
With shields
1)
Linear ball bearings fitted to these units are secured with retaining rings according to DIN 471, cannot be relubricated, not self-aligning.
2)
Upon request LUCE/LUCS bearing units are available in stainless steel execution.
Designation: e.g. LUCE/LUCS 20-2LS/HV6
LUCE linear bearing units can also be fitted with rigid linear ball bearings of type LBCR … A. Designation: e.g. LUCS 20-2LS.

33
Linear bearing units – LUCT/LUCF
open housing, can be relubricated, clearance adjustable
- LUCT version using LBCT bearing
- LUCF version using LBCF bearing, self-aligning
dyn. stat. 2 shields 2 double lip
N2
2)
E1)
a C C0 seals
±0,01
mm Deg. N kg —
12 31 20 32 22 18 6 28 32 23 42 52 4,3 5,3 7,6 78 1 080 815 0,046 LUCF 12 LUCF 12-2LS
16 34,5 22 36 26 22 7 35 40 26 46 56 4,3 5,3 10,4 78 1 320 865 0,061 LUCF 16 LUCF 16-2LS
20 41 28 45 32 25 8 42 45 32 58 70 4,3 6,4 10,8 60 2 000 1 370 0,124 LUCF 20 LUCF 20-2LS
25 52 40 58 40 30 10 51 60 40 68 80 5,3 6,4 13,2 60 2 900 2 040 0,251 LUCF 25 LUCF 25-2LS
30 59 48 68 47 35 10 60 68 45 76 88 6,4 6,4 14,2 50 4 650 3 250 0,374 LUCF 30 LUCF 30-2LS
40 74 56 80 62 45 12 77 86 58 94 108 8,4 8,4 18,7 50 7 800 5 200 0,63 LUCF 40 LUCF 40-2LS
50 66 72 100 75 50 14 88 108 50 116 135 8,4 10,5 23,6 50 11 200 6 950 1,04 LUCF 50 LUCF 50-2LS
60 84 95 125 90 60 18 105 132 65 138 160 10,5 13,0 29,6 54 20 400 18 000 2,0 LUCT 60 LUCT 60-2LS
80 113 125 165 120 80 22 140 170 90 180 205 13,0 13,0 38,4 54 37 500 32 000 5,0 LUCT 80 LUCT 80-2LS
With shields
1)
Minimum sector width at diameter Fw.
2)
For cylindrical screws with internal hexagon to DIN 912 / ISO 4762.
Upon request LUCF/LUCT bearing units are available in stainless steel execution.
Designation: e.g. LUCF/LUCT 20-2LS/HV6
LUCF linear ball bearing units can also be fitted with rigid linear ball bearings of type LBCT … A.
Designation: e.g. LUCT 20-2LS.
LUCF/LUCT linear bearing units Fw 12-80 are also available fitted with linear plain bearings.
Designation: e.g. LUCT 20 PA.
For suitable shaft supports for these bearing units, designation LRCB/LRCC, see page 47.

34
Linear bearing units – LUCT … BH
- LUCT version using LBHT bearing
ratings Linear bearings unit with
N2
2)
E1)
a C C0
±0,01
mm Deg. N kg —
20 41 28 45 32 25 8 42 45 32 58 70 4,3 6,4 10,8 60 2 650 2 650 0,14 LUCT 20 BH LUCT 20 BH-2LS
25 52 40 58 40 30 10 51 60 40 68 80 5,3 6,4 13,2 60 4 900 5 100 0,275 LUCT 25 BH LUCT 25 BH-2LS
30 59 48 68 47 35 10 60 68 45 76 88 6,4 6,4 14,2 50 7 200 8 000 0,48 LUCT 30 BH LUCT 30 BH-2LS
40 74 56 80 62 45 12 77 86 58 94 108 8,4 8,4 18,7 50 11 600 11 400 0,86 LUCT 40 BH LUCT 40 BH-2LS
50 66 72 100 75 50 14 88 108 50 116 135 8,4 10,5 23,6 50 17 300 17 000 1,44 LUCT 50 BH LUCT 50 BH-2LS
With shields
1)
Smallest sector width at diameter Fw.
2)
Upon request LUCT bearing units are available in stainless steel execution.
Designation: e.g. LUCT 20 BH-2LS/HV6
Suitable shaft supports, designation LRCB/LRCC, are available for these units. See page 47 for details.

35
Fw A Da H H1 H2 H3 H4 J J1 L N1)
N1
1)
C C0
±0,01
mm — N kg —
12 32 22 18 35 16,5 11 6 32 23 43 4,3 M 5 1 080 815 0,093 LUND 12 LUND 12-2LS
16 37 26 22 42 21 13 7 40 26 53 5,3 M 6 1 320 865 0,161 LUND 16 LUND 16-2LS
20 45 32 25 50 24 18 7,5 45 32 60 6,6 M 8 2 000 1 370 0,255 LUND 20 LUND 20-2LS
25 58 40 30 61 29 22 8,5 60 40 78 8,4 M 10 2 900 2 040 0,533 LUND 25 LUND 25-2LS
30 68 47 35 70 34 22 9,5 68 45 87 8,4 M 10 4 650 3 250 0,79 LUND 30 LUND 30-2LS
40 80 62 45 90 44 26 11 86 58 108 10,5 M 12 7 800 5 200 1,44 LUND 40 LUND 40-2LS
50 100 75 50 105 49 35 11 108 50 132 13,5 M 16 11 200 6 950 2,47 LUND 50 LUND 50-2LS
1)
Upon request LUND bearing units are available in stainless steel execution.
Designation: e.g. LUND 20-2LS/HV6
Linear bearing units – LUND
- LUND version using LBCD bearing, self-aligning
With shields

36
Linear bearing units – LUNE
slotted housing, can be relubricated, clearance adjustable
- LUNE version using LBCD bearing, self-aligning
N1
1)
C C0 seals
±0,01
mm — N kg —
12 32 22 18 35 16,5 11 6 32 23 43 4,3 M 5 1 080 815 0,093 LUNE 12 LUNE 12-2LS
16 37 26 22 42 21 13 7 40 26 53 5,3 M 6 1 320 865 0,161 LUNE 16 LUNE 16-2LS
20 45 32 25 50 24 18 7,5 45 32 60 6,6 M 8 2 000 1 370 0,255 LUNE 20 LUNE 20-2LS
25 58 40 30 61 29 22 8,5 60 40 78 8,4 M 10 2 900 2 040 0,533 LUNE 25 LUNE 25-2LS
30 68 47 35 70 34 22 9,5 68 45 87 8,4 M 10 4 650 3 250 0,79 LUNE 30 LUNE 30-2LS
40 80 62 45 90 44 26 11 86 58 108 10,5 M 12 7 800 5 200 1,44 LUNE 40 LUNE 40-2LS
50 100 75 50 105 49 35 11 108 50 132 13,5 M 16 11 200 6 950 2,47 LUNE 50 LUNE 50-2LS
With shields
1)
Upon request LUNE bearing units are available in stainless steel execution.
Designation: e.g. LUNE 20-2LS/HV6

37
N1
2)
E1)
a C C0 seals
±0,01
mm — mm Deg. N kg —
12 32 22 18 28 16,5 11 6 32 23 43 4,3 M 5 7,6 78 1 080 815 0,074 LUNF 12 LUNF 12-2LS
16 37 26 22 35 21 13 7 40 26 53 5,3 M 6 10,4 78 1 320 865 0,132 LUNF 16 LUNF 16-2LS
20 45 32 25 42 24 18 7,5 45 32 60 6,6 M 8 10,8 60 2 000 1 370 0,215 LUNF 20 LUNF 20-2LS
25 58 40 30 51 29 22 8,5 60 40 78 8,4 M 10 13,2 60 2 900 2 040 0,443 LUNF 25 LUNF 25-2LS
30 68 47 35 60 34 22 9,5 68 45 87 8,4 M 10 14,2 50 4 650 3 250 0,67 LUNF 30 LUNF 30-2LS
40 80 62 45 77 44 26 11 86 58 108 10,5 M 12 18,7 50 7 800 5 200 1,21 LUNF 40 LUNF 40-2LS
50 100 75 50 88 49 35 11 108 50 132 13,5 M 16 23,6 50 11 200 6 950 2,02 LUNF 50 LUNF 50-2LS
With shields
1)
2)
Upon request LUNF bearing units are available in stainless steel execution.
Designation: e.g. LUNF 20-2LS/HV6
Suitable shaft supports, designation LRCB/LRCC are available for these units. See page 47 for details.
Linear bearing units – LUNF
- LUNF version using LBCF bearing, self-aligning

38
Flanged linear bearing units – LVCR
closed housing
- LVCR using LBCR bearing
1)
2)
Linear ball bearings fitted to these units are secured using pins according to DIN 1470. They are not designed for relubrication.
Upon request LVCR bearing units are available in stainless steel execution.
Designation: e.g. LVCR 20-2LS/HV6
LVCR linear ball bearing units of sizes Fw 12-50 can also be fitted with linear bearings which are self-aligning
Designation: e.g. LVCD 12-2LS.
Linear bearing unit 2)
dyn. stat. with 2 double lip seals
Fw A A1 C Da D2 J L N1)
C C0
mm N kg —
12 20 8 32 22 32 30 42 5,5 1 160 980 0,113 LVCR 12-2LS
16 22 8 36 26 38 35 50 5,5 1 500 1 290 0,161 LVCR 16-2LS
20 28 10 45 32 46 42 60 6,6 2 240 2 040 0,314 LVCR 20-2LS
25 40 12 58 40 58 54 74 6,6 3 350 3 350 0,655 LVCR 25-2LS
30 48 14 68 47 66 60 84 9 5 600 5 700 0,98 LVCR 30-2LS
40 56 16 80 62 90 78 108 11 9 000 8 150 1,91 LVCR 40-2LS
50 72 18 100 75 110 98 130 11 13 400 12 200 3,27 LVCR 50-2LS
60 95 22 125 90 135 120 160 13,5 20 400 18 000 5,92 LVCR 60-2LS
80 125 25 165 120 180 155 200 13,5 37 500 32 000 13,3 LVCR 80-2LS

39
ratings Linear bearing unit
dyn. stat. with double lip seals
N1
1)
C C0
±0,01
mm — N kg —
12 76 32 22 18 35 27 13 30 40 42 5,3 M 6 1 760 1 630 0,236 LTCD 12-2LS
16 84 36 26 22 41,5 33 13 36 45 50 5,3 M 6 2 160 1 730 0,372 LTCD 16-2LS
20 104 45 32 25 49,5 39,5 18 45 55 60 6,4 M 8 3 200 2 750 0,67 LTCD 20-2LS
25 130 58 40 30 59,5 47 22 54 70 74 8,4 M 10 4 750 4 150 1,236 LTCD 25-2LS
30 152 68 47 35 69,5 55 26 62 85 84 10,5 M 12 7 500 6 550 1,87 LTCD 30-2LS
40 176 80 62 45 89,5 71 34 80 100 108 13 M 16 12 700 10 400 3,55 LTCD 40-2LS
50 224 100 75 50 99,5 81 34 100 125 130 13 M 16 18 300 14 000 5,92 LTCD 50-2LS
Upon request LTCD bearing units are available in stainless steel execution.
Designation: e.g. LTCD 20-2LS/HV6
Tandem linear bearing units – LTCD
- LTCD version using LBCD bearing, self-aligning
1)
J1
J

40
dyn. stat. with double lip seals
N1
2)
E1)
a C C0
±0,01
12 76 32 22 18 29 23,5 13 30 40 42 5,3 M 6 7,6 78 1 760 1 630 0,178 LTCF 12-2LS
16 84 36 26 22 35 28 13 36 45 50 5,3 M 6 10,4 78 2 160 1 730 0,284 LTCF 16-2LS
20 104 45 32 25 42 33,5 18 45 55 60 6,4 M 8 10,8 60 3 200 2 750 0,62 LTCF 20-2LS
25 130 58 40 30 51 40 22 54 70 74 8,4 M 10 13,2 60 4 750 4 150 0,966 LTCF 25-2LS
30 152 68 47 35 60 46,5 26 62 85 84 10,5 M 12 14,2 50 7 500 6 550 1,49 LTCF 30-2LS
40 176 80 62 45 77 61 34 80 100 108 13 M 16 18,7 50 12 700 10 400 2,81 LTCF 40-2LS
50 224 100 75 50 88 72 34 100 125 130 13 M 16 23,6 50 18 300 14 000 4,83 LTCF 50-2LS
1)
2)
Upon request LTCF bearing units are available in stainless steel execution.
Designation: e.g. LTCF 20-2LS/HV6
Tandem linear bearing units – LTCF
open housing, can be relubricated.
- LTCF version using LBCF bearing, self-aligning
J1
J

41
dyn. stat. with double lip
Fw C Da H H1 H2 H3 J L L1 N2)
N1
2)
C C0 seals
±0,01
mm — N kg —
8 25 16 11,5 23 17,5 11 55 65 32 4,3 M 5 1 290 1 420 0,226 LQCR 8-2LS1)
12 32 22 16 32 25 13 73 85 42 5,3 M 6 2 850 3 250 0,492 LQCD 12-2LS
16 36 26 18 36 29 13 88 100 54 5,3 M 6 3 450 3 450 0,744 LQCD 16-2LS
20 45 32 23 46 37,5 18 115 130 72 6,6 M 8 5 200 5 500 1,68 LQCD 20-2LS
25 58 40 28 56 45 22 140 160 88 8,4 M 10 7 650 8 150 3,022 LQCD 25-2LS
30 68 47 32 64 50,5 26 158 180 96 10,5 M 12 12 200 12 900 4,27 LQCD 30-2LS
40 80 62 40 80 64 34 202 230 122 13,5 M 16 20 800 20 800 8,38 LQCD 40-2LS
50 100 75 48 96 80 34 250 280 152 13,5 M 16 30 000 28 000 14,99 LQCD 50-2LS
1)
Unit with linear ball bearing not designed for re-greasing, non self-aligning.
2)
For 4 cylindrical screws with internal hexagon to DIN 912 / ISO 4762.
Upon request LQCR/LQCD bearing units are available in stainless steel execution.
Designation: e.g. LQCR/LQCD 20-2LS/HV6
For suitable shaft blocks for these bearing units, designation LEAS … A and LEAS … B, see page 46.
Quadro linear bearing units – LQCR/LQCD
closed housing, can be relubricated.
- LQCR version using LBCR bearing
- LQCD version using LBCD bearing, self-aligning
J
J

42
dyn. stat. with double lip
Fw C Da H H1 H2 H3 J L L1 N2)
N1
2)
E1)
a C C0 seals
±0,01
12 32 22 18 30 23,4 13 73 85 42 5,3 M 6 7,6 78 2 850 3 250 0,426 LQCF 12-2LS
16 36 26 22 35 28,4 13 88 100 54 5,3 M 6 10,4 78 3 450 3 450 0,698 LQCF 16-2LS
20 45 32 25 42 33,5 18 115 130 72 6,6 M 8 10,8 60 5 200 5 500 1,42 LQCF 20-2LS
25 58 40 30 51 40 22 140 160 88 8,4 M 10 13,2 60 7 650 8 150 2,572 LQCF 25-2LS
30 68 47 35 60 46,5 26 158 180 96 10,5 M 12 14,2 50 12 200 12 900 3,79 LQCF 30-2LS
40 80 62 45 77 61 34 202 230 122 13,5 M 16 18,7 50 20 800 20 800 7,8 LQCF 40-2LS
50 100 75 55 93 77 34 250 280 152 13,5 M 16 23,6 50 30 000 28 000 13,96 LQCF 50-2LS
1)
2)
For 4 cylindrical screws with internal hexagon to DIN 912 / ISO 4762.
Upon request LQCF bearing units are available in stainless steel execution.
Designation: e.g. LQCF 20-2LS/HV6
Quadro linear bearing units – LQCF
open housing, can be relubricated.
- LQCF version with LBCF bearing, self-aligning
J
J

43
Among shaft carriers, a distinction is
made between shaft blocks and shaft
supports. Shaft blocks support the
shaft only at its ends; shaft supports
typically run the entire length of the
shaft and therefore require the use
of open linear bearing units.
LSCS shaft blocks are made of cast
aluminium and designed to grip the
end of the shaft. These blocks are
supplied as standard with two holes
drilled in the base for attachment.
LSCS shaft blocks are suitable for
shaft diameters ranging from 8 to
80 mm.
LSNS and LSHS shaft blocks are
made of extruded aluminium. They
can be attached by through bolts or
they can be bolted, via threaded ho-
les, directly to the support surface.
LRCB/LRCC shaft supports
For heavily loaded linear bearing
units and/or long track lengths, SKF
recommends the use of shaft sup-
ports to eliminate shaft bending. For
these applications, continuous or at
least partial support of the shaft is
necessary. SKF offers shaft supports
for shaft diameters ranging from 12
to 80 mm. There are two types of
shaft support: the LRCB with predril-
led holes and the LRCC without ho-
les.
Note: Shaft supports require the use
of open design linear bearing units.
LSNS and LSHS shaft blocks are
available for shaft diameters ranging
from 12 to 50 mm.
LEBS/LEAS tandem shaft blocks
To match the duo and quadro linear
bearing units with ISO series 1 linear
ball bearings (LBBR), LEBS tandem
shaft blocks are available in the “A”
design, where the shaft block is fixed
and the linear bearing moves axially.
LEBS shaft blocks are available for
shaft diameters ranging from 12 to
50 mm. For units with ISO series 3
linear ball bearings (LBC/LBHT)
LEAS tandem shaft blocks are avai-
lable in both the “A” and “B” design.
The “B” design enables axial move-
ment of the shafts through a
fixed linear bearing unit. LEAS shaft
blocks are available for shaft diame-
ters ranging from 8 to 50 mm.
Shaft carriers / shaft blocks
LEAS/LEBS
LSCS
LRCB
LJM

44
Dimensions Mass Designations
Shaft block
da A H H1 H2 J J2 J3 L L1 N1)
N2
±0,01
mm kg —
8 10 15 5,5 25 25 35 5 45 19 4,3 2,7 0,012 LSCS 8
12 12 20 6 32,5 32 42 6 52 25 5,3 3,2 0,023 LSCS 12
16 15 20 7 35,5 40 46 7,5 56 31,8 5,3 4,3 0,034 LSCS 16
20 20 25 8 43,5 45 58 10 70 37 5,3 5,3 0,065 LSCS 20
25 28 30 10 53 60 68 16 80 48 6,4 6,4 0,14 LSCS 25
30 30 35 10 63 68 76 18 88 56 8,4 6,4 0,20 LSCS 30
40 36 45 12 81 86 94 22 108 71 10,5 8,4 0,47 LSCS 40
50 49 50 14 92,5 108 116 30 135 86 10,5 10,5 0,68 LSCS 50
60 62 60 18 112 132 138 40 160 105 13 13 1,29 LSCS 60
80 85 80 22 147,5 170 180 60 205 136 17 15 3,01 LSCS 80
1)
Shaft blocks – LSCS

45
Shaft block
da A H H1 H2 H3 H4 J L2)
N1)
N1
1)
±0,01
mm kg —
12 20 20 6 35 13 16,5 30 43 5,3 M 6 0,06 LSNS 12
16 24 25 7 42 18 21 38 53 6,6 M 8 0,11 LSNS 16
20 30 30 7,5 50 22 25 42 60 8,4 M 10 0,17 LSNS 20
25 38 35 8,5 61 26 30 56 78 10,5 M 12 0,34 LSNS 25
30 40 40 9,5 70 26 34 64 87 10,5 M 12 0,46 LSNS 30
40 48 50 11 90 34 44 82 108 13,5 M 16 0,90 LSNS 40
50 58 60 11 105 43 49 100 132 17,5 M 20 1,45 LSNS 50
12 18 19 — 33 13 16,5 27 40 5,3 M 6 0,05 LSHS 12
16 20 22 — 38 13 18 32 45 5,3 M 6 0,07 LSHS 16
20 24 25 — 45 18 21 39 53 6,6 M 8 0,11 LSHS 20
25 28 31 — 54 22 25 44 62 8,4 M 10 0,17 LSHS 25
30 30 34 — 60 22 29 49 67 8,4 M 10 0,22 LSHS 30
40 40 42 — 76 26 37 66 87 10,5 M 12 0,47 LSHS 40
50 50 50 — 92 34 44 80 103 13,5 M 16 0,82 LSHS 50
1)
2)
Tolerance L/2 ± 0,01 only by execution LSNS.
Shaft blocks – LSNS/LSHS
in combination with linear ball bearings acc. to ISO series 1 and ISO series 3
Design versions
LSHS = Shaft blocks with ISO series 1 LBBR bearings
LSNS = Shaft blocks with ISO series 3 LBC/LBH bearings

46
A-design* B-design*
1)
Tandem shaft blocks – LEAS/LEBS
in combination with linear ball bearings and shafts acc. to ISO series 1 and ISO series 3
Design versions
LEBS … A = Shaft blocks with ISO series 1 LBBR bearings, to be used as shaft block
LEAS … A = Shaft blocks with ISO series 3 LBC bearings, to be used as shaft block
LEAS … B = Shaft blocks with ISO series 3 LBC bearings, to clamp on the shafts
*
*
ISO
Tandem shaft block
Design Design
da A HA H1A H2A HB H1B H2B J L L1 N1)
N1
1)
A B A B
±0,015 ±0,015
mm — kg —
12 15 17 30 21,5 — — — 64 80 40 6,6 — 0,08 — LEBS 12 A — 1
16 15 19,5 35 26,5 — — — 80 96 52 6,6 — 0,11 — LEBS 16 A — 1
20 18 22 40 29 — — — 97 115 63 9 — 0,17 — LEBS 20 A — 1
25 20 27 50 36,5 — — — 115 136 75 11 — 0,28 — LEBS 25 A — 1
30 20 31 56 42,5 — — — 125 146 80 11 — 0,32 — LEBS 30 A — 1
40 25 38 70 54 — — — 160 184 97 13,5 — 0,63 — LEBS 40 A — 1
50 30 43 80 59 — — — 180 210 107 17,5 — 0,90 — LEBS 50 A — 1
8 12 12,5 23 16 11 22 15 52 65 32 5,5 M 5 0,04 0,04 LEAS 8 A LEAS 8 B 3
12 14 18 32 23,5 14 28 19,5 70 85 42 6,6 M 6 0,09 0,07 LEAS 12 A LEAS 12 B 3
16 18 20 36 26,5 17 34 23,5 82 100 54 9 M 8 0,14 0,13 LEAS 16 A LEAS 16 B 3
20 20 25 46 32,5 21 42 28,5 108 130 72 11 M 10 0,25 0,22 LEAS 20 A LEAS 20 B 3
25 25 30 56 40 26 52 36 132 160 88 13,5 M 12 0,47 0,44 LEAS 25 A LEAS 25 B 3
30 25 35 64 48 29 58 42 150 180 96 13,5 M 12 0,62 0,56 LEAS 30 A LEAS 30 B 3
40 30 44 80 59 36 72 51 190 230 122 17,5 M 16 1,15 1,00 LEAS 40 A LEAS 40 B 3
50 30 52 96 75 44 88 67 240 280 152 17,5 M 16 1,70 1,52 LEAS 50 A LEAS 50 B 3

47
LRCB Shaft support Shaft attachment1)
design with without
bore holes bore holes Screw
d A H H1 J J1 M N1)
N1
1)
b
±0,02
mm mm Deg. kg — —
12 40 22 5 75 29 5,8 4,5 4,5 50 0,53 LRCB 12 LRCC 12 M 4x16
16 45 26 5 100 33 7 5,5 5,5 50 0,64 LRCB 16 LRCC 16 M 5x20
20 52 32 6 100 37 8,3 6,6 6,6 50 0,92 LRCB 20 LRCC 20 M 6x25
25 57 36 6 120 42 10,8 6,6 9 50 1,08 LRCB 25 LRCC 25 M 8x25
30 69 42 7 150 51 11 9 11 50 1,41 LRCB 30 LRCC 30 M 10x30
40 73 50 8 200 55 15 9 11 50 1,85 LRCB 40 LRCC 40 M 10x35
50 84 60 9 200 63 19 11 13,5 46 2,45 LRCB 50 LRCC 50 M 12x40
60 94 68 10 300 72 25 11 15,5 46 3,25 LRCB 60 LRCC 60 M 14x45
80 116 86 12 300 92 34 13,5 17,5 46 4,40 LRCB 80 LRCC 80 M 16x55
Design versions
LRCB = Shaft support with mounting holes
LRCC = Shaft support without mounting holes
1)
For screws with internal hexagon to DIN 912 / ISO 4762 without spring washers.
Shaft supports – LRCB/LRCC

48
The closed LZBU quadro linear table
consists of a closed quadro linear be-
aring unit, two tandem shaft blocks
and two shafts of the required length.
The bearing unit is fitted with four
LBCD-LS self-aligning linear ball be-
arings, each sealed at one end. The
LZBU-“A” design enables axial move-
ment of the linear bearing unit, i.e.
the shafts are fixed to the machine
bed via LEAS-“A” shaft blocks. The
LZBU-“B” design is provided with
LEAS-“B” shaft blocks. This combina-
tion enables the shafts to travel with
the shaft blocks in applications where
the linear bearing unit is fixed.
LZBU quadro linear tables can be
supplied in sizes ranging from 8 to
50 mm. Size 8 tables are not self-ali-
holes in the LRCB shaft supports. The
total length should always be a multi-
ple of this distance. LZAU are available
in sizes ranging from 12 to 50 mm.
gning and are not designed for relu-
brication. The description of the
closed quadro-linear table also ap-
plies to the combination of series 1
LQBR … 2LS quadro linear bearing
units with twin LEBS tandem shaft
blocks and shafts (on special request
only). Shaft diameters range from 12
to 50 mm.
The open LZAU quadro linear table
comprises the open quadro-linear
unit and two high precision shafts
with shaft supports. The bearing unit
is fitted with four LBCF-“A-LS” self-
aligning linear ball bearings, each
sealed on one end. The length of the-
se tables is dictated by the distance
between centres of the attachment
Quadro linear tables, non-driven
LZAU
LZBU

49
Design LZBU … A with closed linear bearing unit
Quadro linear tables – LZBU … A
- LZBU version with LQCD closed bearing units, LEAS-A* shaft blocks and shafts
* “A” design means fixed shafts and moving unit
1)
The designation for an LZBU quadro-linear table with a shaft length of, for instance, 1 200 mm LZBU …-2LS x 1200. Delivered as a kit of parts.
2)
Recommended maximal shaft length. On demand longer shaft lengths are available. The appropiate length tolerances of these shafts are according to
DIN 7168 coarse series.
3)
Suitable Screws with internal hexagon according to DIN 912 / ISO 4762.
4)
Valid only for even loading of all four LBC … A linear ball bearings. On delivery the deviation of the shaft must be considered and possibly the load rating
revised.
5)
Units fitted with LBCR linear ball bearings are not designed for relubrication and are not self-aligning.
Dimensions Load ratings4)
Designations1)
dyn stat.
d A HRA HA H1A H2A H H1 H2 H3 J1 J2 L1
2)
L2 L3 N3)
N1
3)
N2
3)
C C0
± 0,03 ± 0,015 ± 0,01
mm – mm N –
8 12 24 12,5 23 16 11,5 23 17,5 11 55 52 600 65 32 4,3 M 5 5,5 1 290 1 420 LZBU 8 A-2LS5)
12 14 34 18 32 23,5 16 32 25 13 73 70 900 85 42 5,3 M 6 6,6 2 850 3 250 LZBU 12 A-2LS
16 18 38 20 37 26,5 18 36 29 13 88 82 1 500 100 54 5,3 M 6 9 3 450 3 450 LZBU 16 A-2LS
20 20 48 25 46 32,5 23 46 37,5 18 115 108 1 800 130 72 6,6 M 8 11 5 200 5 500 LZBU 20 A-2LS
25 25 58 30 56 40 28 56 45 22 140 132 1 800 160 88 8,4 M 10 13,5 7 650 8 150 LZBU 25 A-2LS
30 25 67 35 64 48 32 64 50,5 26 158 150 2 400 180 96 10,5 M 12 13,5 12 200 12 900 LZBU 30 A-2LS
40 30 84 44 80 59 40 80 64 34 202 190 3 000 230 122 13,5 M 16 17,5 20 800 20 800 LZBU 40 A-2LS
50 30 100 52 96 75 48 96 80 34 250 240 3 000 280 152 13,5 M 16 17,5 30 000 28 000 LZBU 50 A-2LS
J1

50
Quadro linear tables – LZBU … B
- LZBU version with LQCD closed bearing units, LEAS-B* shaft blocks and shafts
* “B” design means fixed unit and moving shafts
Design LZBU … B with closed linear bearing unit
Designations1)
dyn stat.
d A HRB HB H1B H2B H H1 H2 H3 J1 J2 L1
2)
L2 L3 N3)
N1
3)
N2
3)
C C0
± 0,03 ± 0,015 ± 0,01
mm – – N –
8 12 22,5 11 22 15 11,5 23 17,5 11 55 52 600 65 32 4,3 M 5 M 5 1 290 1 420 LZBU 8 B-2LS5)
12 14 30 14 28 19,5 16 32 25 13 73 70 900 85 42 5,3 M 6 M 6 2 850 3 250 LZBU 12 B-2LS
16 18 35 17 34 23,5 18 36 29 13 88 82 1 500 100 54 5,3 M 6 M 8 3 450 3 450 LZBU 16 B-2LS
20 20 44 21 42 28,5 23 46 37,5 18 115 108 1 800 130 72 6,6 M 8 M 10 5 200 5 500 LZBU 20 B-2LS
25 25 54 26 52 36 28 56 45 22 140 132 1 800 160 88 8,4 M 10 M 12 7 650 8 150 LZBU 25 B-2LS
30 25 61 29 58 42 32 64 50,5 26 158 150 2 400 180 96 10,5 M 12 M 12 12 200 12 900 LZBU 30 B-2LS
40 30 76 36 72 51 40 80 64 34 202 190 3 000 230 122 13,5 M 16 M 16 20 800 20 800 LZBU 40 B-2LS
50 30 92 44 88 67 48 96 80 34 250 240 3 000 280 152 13,5 M 16 M 16 30 000 28 000 LZBU 50 B-2LS
1)
The designation for an LZBU quadro-linear table with a shaft length of, for instance, 1 200 mm LZBU …-2LS x 1200. Delivered as a kit of parts.
2)
Recommended maximal shaft length. On demand longer shaft lengths are available. The appropiate length tolerances of these shafts are according to
DIN 7168 coarse series.
3)
4)
Valid only for even loading of all four LBC … A linear ball bearings. On delivery the deviation of the shaft must be considered and possibly the load rating
revised.
5)
Units fitted with LBCR linear ball bearings are not designed for relubrication and are not self-aligning.
J1

51
Quadro linear tables – LZAU
- LZAU version with LQCF open bearing units and supported shafts
Design LZAU with open linear bearing unit type LQCF
Dimensions
Standard length
d L
mm length increments in mm
12-40 300 600 900 1 200 1 500 1 800 2 100 2 400 2 700 3 000
50 — 600 900 1 200 1 500 1 800 2 100 2 400 2 700 3 000
Designations1)
dyn stat.
d HT H H1 H2 H3 J3)
J1 J2 L1 L2 N2)
N1
2)
N2
2)
C C0
± 0,03 ± 0,01
mm – mm N –
12 40 18 30 23,4 13 75 29 73 85 42 5,3 M 6 4,5 2 850 3 250 LZAU 12-2LS
16 48 22 35 28,4 13 100 33 88 100 54 5,3 M 6 5,5 3 450 3 450 LZAU 16-2LS
20 57 25 42 33,5 18 100 37 115 130 72 6,6 M 8 6,6 5 200 5 500 LZAU 20-2LS
25 66 30 51 40 22 120 42 140 160 88 8,4 M 10 6,6 7 650 8 150 LZAU 25-2LS
30 77 35 60 46,5 26 150 51 158 180 96 10,5 M 12 9 12 200 12 900 LZAU 30-2LS
40 95 45 77 61 34 200 55 202 230 122 13,5 M 16 9 20 800 20 800 LZAU 40-2LS
50 115 55 93 77 34 200 63 250 280 152 13,5 M 16 11 30 000 28 000 LZAU 50-2LS
1)
The designation for an LZAU quadro-linear table with a shaft length of, for instance, 600 mm LZAU … -2LS x 600.
Delivered with shafts and shaft supports ready assembled.
2)
3)
The separation is allways arranged symmetrically to half the table length.
4)
Valid only for even loading of all four LBC … A linear ball bearings.

52
SKF precision shafts can be supplied
either as solid or hollow shafts. Solid
shafts are available in all dimensions
required to fit SKF linear ball be-
arings; hollow shafts have a mini-
mum outer diameter of 16 mm. They
are induction hardened and ground
(see table on next page). SKF shafts
have exceptionally high dimensional
stability and are designed for long
service life.
The shaft ends of normal shaft pro-
duction may deviate in hardness
and dimension accuracy. For special
applications, solid shafts of stainless
steel or hard chromium plated shafts
with a chromium coating of approxi-
mately 10 µm thickness can be sup-
plied. Note that the surface of a
between 60 and 64 HRC. Solid stain-
less steel shafts are made from
X9OCrMoV18 (Material No.1.4112)
or X46Cr13 (Material No.1.4034). In
this case the surface hardness lies
between 52 and 56 HRC. Shafts ma-
de from other materials can be sup-
plied to special order.
Surface finish
All SKF precision steel shafts have a
surface roughness of max. Ra 0,3 µm.
stainless steel shaft is not as hard as
the surface of a shaft made of high-
grade steel. The case depth may also
be greater than indicated in the table
and this may have an influence on
the machinability of the shafts. Be-
cause of the benefits they offer, SKF
precision shafts are not only used to-
gether with SKF linear ball bearings
for linear guides, but are also used
for other applications like axles or co-
lumn sleeves.
Materials
SKF precision shafts are made from
non-alloyed high-grade steels Cf53
(Material No.1.1213), Ck53 (Material
No.1.1210), C60 (Material
No.1.0601) and 100Cr6 (Material
No.1.3505). The surface hardness is
Precision shafts

53
Tolerances
SKF precision steel shafts are machi-
ned to h6 or h7 tolerances. The ac-
curacy of dimensions and form of
these shafts can be found in the ta-
ble on page 56. There may be slight
deviations from the values provided
in the tables for sections of the shaft
that have been annealed. SKF preci-
sion steel shafts with diameters ma-
chined to tolerance h9 can be sup-
plied to special order. Shafts cut to
special lengths have a length tole-
rance to ISO 2768 medium class.
The relevant values are provided in
the adjacent table.
Shafts with radial holes
For linear guides requiring support,
shafts with threaded radial holes are
needed. These can be supplied by
SKF. The radial holes may be either
positioned to fit SKF shaft supports
or as specified on the customer’s
drawings. However, SKF recom-
mends using the guideline values
provided in the adjacent table for
thread size and depth. SKF shafts
with radial holes are not annealed at
the drilling position; the thread is cut
in the case hardened and ground
shaft to avoid any changes in hard-
ness or dimensional accuracy.
Case hardening of SKF shafts
Shaft Hardness
diameter depth
over incl min
mm mm
— 10 0,5
10 18 0,8
18 30 1,2
30 50 1,5
50 80 2,2
80 100 3,0
Length tolerances for shafts to
ISO 2768 medium class
Nominal
length Deviation
over incl
mm mm
— 120 ± 0,3
120 400 ± 0,5
400 1 000 ± 0,8
1 000 2 000 ± 1,2
2 000 4 000 ± 2
4 000 8 000 ± 3
Standard length of the shafts1)
SKF precision steel shafts are available in following length
Shaft diameter Maximal length2)
LJM3)
LJMH3)
LJMS3)
LJMR3)
LJT3)
mm mm
34)
200
44)
200
5 3 900 2 000 1 000 3 800
6 3 900 3 900 3 900 3 800
8 3 900 3 900 3 900 3 800
10 6 200 6 200 3 900 3 800
12 6 200 6 200 4 900 6 200 6 000
14 6 200 6 200 4 900 6 200
16 6 200 6 200 4 900 6 200 6 000
20 6 200 6 200 4 900 6 200 6 000
25 6 200 6 200 4 900 6 200 6 000
30 6 200 6 200 4 900 6 200 6 000
40 6 200 6 200 4 900 6 200 6 000
50 6 200 6 200 4 900 6 200 6 000
60 6 200 6 200 4 900 6 200 6 000
80 6 200 6 200 6 000
1)
Different diameters and length on request
2)
length tolerance ±10 % (based on maximum shaft length)
3)
for details see page 56/57
4)
only available as ESSC 2 see page 54
Corrosion protection, packing
SKF precision steel shafts are treated
with a rust inhibiting preservative
that must be removed before the
shafts are installed. Depending on
size and quantity, they are supplied
in cardboard or wooden boxes that
offer maximum protection during
transport.
Composite shafts
Composite shafts can be supplied to
customer drawings, either with scre-
wed joints or with “plug and socket”
joints, depending on the application.
Accurately centred trunnions and so-
ckets provide smooth transitions at
the butt joint. To enable correct as-
sembly, the relative positions of the
shaft sections and shaft ends are
marked. Composite shafts should be
fastened to a support at the butt
joints, particularly when “plug and
socket” joints are used. When drilling
radial holes for the supports, drill as
close as possible to the joint.
Note: the length of the shaft and the
positioning of the supports should be
determined so that any bending of
the shaft will not cause a gap to form
at the joint.

54
Shafting standard – ESSC
ESSC 1
cut with no chamfer only deburr
• length tolerance according to
ISO 2768 medium class
(see page 53)
ESSC 2
cut with chamfer
• length tolerance as ESSC 1
ESSC 3
cut with machined 25° chamfer and
90° front surfaces for limited length
tolerance or chamfer according to
customer specification
• length tolerance +/- 0,1 mm up to
3 000 mm total length
ESSC 4
cut with machined 25° chamfer, 90°
front surfaces and one axial hole
• length tolerance as ESSC 3
ESSC 5
as ESSC 4 with two axial holes
Dimensions of front side thread
(ESSC 4 & ESSC 5)
Ø (d) Thread (G) Depth (L5)
5 - -
8 M4 10
10 M4 10
12 M5 12,5
14 M5 12,5
16 M6 15
20 M8 20
25 M10 25
30 M10 25
40 M12 30
50 M16 40
60 M20 50
80 M24 60

55
Dimensions of radial thread
Ø Thread G G1 J Jx
5 - - - - -
8 - - - - -
12 M4 5 8 75 37,5
16 M5 6 9,5 100 50
20 M6 7 13 100 50
25 M8 9 14 120 60
30 M10 11 18 150 75
40 M10 11 20 200 100
50 M12 13 23 200 100
60 M14 15 28 300 150
80 M16 16 33 300 150
ESSC 6
cut and chamfer as ESSC 2
• with radial holes for LRCB
(see page 47)
• first radial hole with Jx = J/2
• H1 according to hardness depth
Ø Thread G G1 J Jx
5 - - - - -
8 - - - - -
12 M4 5 8 -
16 M5 6 9,5 - -
20 M6 7 13 - -
25 M8 9 14 - -
30 M10 11 18 - -
40 M10 11 20 - -
50 M12 13 23 - -
60 M14 15 28 - -
80 M16 16 33 - -
ESSC 7
as ESSC 6
• radial holes with J and Jx according
to customer specification
Ø Thread G G1 J Jx
5 - - - - -
8 - - - - -
12 M4 5 8 75 37,5
16 M5 6 9,5 100 50
20 M6 7 13 100 50
25 M8 9 14 120 60
30 M10 11 18 150 75
40 M10 11 20 200 100
50 M12 13 23 200 100
60 M14 15 28 300 150
80 M16 16 33 300 150
ESSC 8
cut and chamfer as ESSC 2
• Shaft is mounted on LRCB
(see page 47)
• first radial hole with Jx = J/2
• H1 according to hardness depth
Ø Thread G G1 J Jx
5 - - - - -
8 - - - - -
12 M4 5 8 - -
16 M5 6 9,5 - -
20 M6 7 13 - -
25 M8 9 14 - -
30 M10 11 18 - -
40 M10 11 20 - -
50 M12 13 23 - -
60 M14 15 28 - -
80 M16 16 33 - -
ESSC 9
as ESSC 8
• Shaft is mounted on LRCC
(see page 47)
• radial holes with J and Jx according
to customer specification
ESSC 10, shaft according to customer specification / drawings

56
Dimension Mass Moment of Cross sectional Designations
inertia area Solid shafts Solid shafts of stainless Solid shafts Hollow shaft
Solid Hollow Solid Hollow Solid Hollow of precision steel with high grade high grade
shaft shaft shaft shaft shaft shaft steel steel hard steel
chromium plated
d d1 rmin Cf53/Ck53 X90CrMoV18 X46Cr13 Cf53/Ck53 C60/100Cr6
mm kg/m cm4
mm2
3 — 0,4 0,06 — 0,0004 — 7,1 — LJMR 3
4 — 0,4 0,1 — 0,0013 — 12,6 — LJMR 4
5 — 0,8 0,15 — 0,0031 — 19,6 — LJM 5 LJMR 5 LJMS 5 LJMH 5
6 0,8 0,22 — 0,0064 — 28,3 — LJM 6 LJMR 6 LJMS 6 LJMH 6
12 4 1 0,89 0,79 0,102 — 113 — LJM 12 LJMR 12 LJMS 12 LJMH 12 LJT 12
14 — 1 1,21 — 0,189 — 154 — LJM 14 LJMR 14 LJMS 14 LJMH 14
16 7 1 1,58 1,28 0,322 0,310 201 163 LJM 16 LJMR 16 LJMS 16 LJMH 16 LJT 16
20 14 1,5 2,47 1,25 0,785 0,597 314 160 LJM 20 LJMR 20 LJMS 20 LJMH 20 LJT 20
40 28 2 9,86 4,99 12,6 9,96 1 260 685 LJM 40 LJMR 40 LJMS 40 LJMH 40 LJT 40
50 30 2 15,4 9,91 30,7 27,7 1 960 1 350 LJM 50 LJMR 50 LJMS 50 LJMH 50 LJT 50
60 36 2,5 22,2 14,2 63,6 57,1 2 830 1 920 LJM 60 LJMR 60 LJMS 60 LJMH 60 LJT 60
80 57 2,5 39,5 19,43 201 153 5 030 2 565 LJM 80 LJMH 80 LJT 80
Standard designs for fixed length without chamfer Standard designs for fixed length with chamfer
Precision shafts
Attention:
d1 can deviate from the value quoted. Please enquire if necessary.
Different shaft diameters and types on request.
The static load capacity has to be decreased by 8 % and the dynamic load capacity by 18 % when using the non corrosi-
on types (HV6) in conjunction with precision steel shafts made of stainless steel.
1)
Shafts cut to special length with chamfered ends. The length tolerance of these shafts corresponds to LJM 20x1500 ESSC2 medium class.
The designation for a shaft with 20 mm diameter cut to a length of 1,5 m is, for example, LJM 20x1500 ESSC2.

57
Shaft Accuracy of dimension and form
Nominal Shafts to tolerance h6 Shafts to tolerance h7
diameter Diameter Round- Cylindri- Straight- Diameter Round- Cylindri- Straight
deviation ness city ness1)
deviation ness city ness1)
d high low t1 t2 t3 high low t1 t2 t3
mm µm
3 0 -6 3 4 150 0 -10 4 6 150
4 0 -8 4 5 150 0 -12 5 8 150
5 0 -8 4 5 150 0 -12 5 8 150
6 0 -8 4 5 150 0 -12 5 8 150
8 0 -9 4 6 120 0 -15 6 9 120
10 0 -9 5 7 120 0 -15 7 10 120
12 0 -11 5 8 100 0 -18 8 11 100
14 0 -11 5 8 100 0 -18 8 11 100
16 0 -11 5 8 100 0 -18 8 11 100
20 0 -13 6 9 100 0 -21 9 13 100
25 0 -13 6 9 100 0 -21 9 13 100
30 0 -13 6 9 100 0 -21 9 13 100
40 0 -16 7 11 100 0 -25 11 16 100
50 0 -16 7 11 100 0 -25 11 16 100
60 0 -19 8 13 100 0 -30 13 19 100
80 0 -19 8 13 100 0 -30 13 19 100
1)
Shafts with higher precision on request.
Precision shafts of high-grade steel

skf.com
®SKF is a registered trademark of the SKF Group.
©SKF Group 2011
The contents of this publication are the copyright of the publisher and may not be reproduced (even extracts) unless prior written per-
mission is granted. Every care has been taken to ensure the accuracy of the information contained in this publication but no liability can
be accepted for any loss or damage whether direct, indirect or consequential arising out of the use of the information contained herein.
PUB 4182/2 EN · April 2011
This publication supersedes publication 4182/1 EN
Printed in Sweden on environmentally friendly paper.

Rolamentos Lineares SKF

Recommended

Recommended

More Related Content

Similar to Rolamentos Lineares SKF

Similar to Rolamentos Lineares SKF (20)

More from Celso LS

More from Celso LS (20)

Recently uploaded

Recently uploaded (20)

Rolamentos Lineares SKF